Dendrochronological analysis of oak timbers from St Mary's Hall, Coventry, West Midlands, has resulted in the production of a felling date range for one part of the building of AD 1422 to c AD 1460. A part of the building on a different alignment has proved difficult to date using the tree-ring techniques. The trees utilised for these different parts of the building are presumed to be of a different date or origin.